Final answer:
A void where ore is moved from the surrounding rock mass is called a stope, relating to the field of geology and mining. Geological phenomena that expose rock can lead to mining and creation of stopes.
Step-by-step explanation:
A void where ore is moved from the surrounding rock mass is called a stope. This term is widely used in the field of geology and mining, referring to the space left after the removal of mineral material. When a glacier retreats and leaves behind bare rock, or a landslide uncovers an area of bare rock, these processes also contribute to the exposure of geological features that may include ore bodies. Similarly, the exposure of rock through other geological phenomena like lava flows from a volcano, or the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate (a process associated with plate tectonics), can lead to the eventual mining and creation of stopes. Contacts are important in this field, as they are boundaries which separate one rock body from another and can be related to the location of ore bodies.